2004 World Junior Championships in Athletics – Men's 800 metres

The men's 800 metres event at the 2004 World Junior Championships in Athletics was held in Grosseto, Italy, at Stadio Olimpico Carlo Zecchini on 13, 14 and 16 July.

Final
16 July

Semifinals
14 July

Heats
13 July

Participation
According to an unofficial count, 31 athletes from 23 countries participated in the event. • 🇦🇺 australia (2)

• 🇧🇪 belgium (1)

• 🇧🇷 brazil (2)

• 🇫🇷 france (2)

• 🇵🇫 french polynesia (1)

• 🇩🇪 germany (1)

• 🇭🇺 hungary (1)

• 🇮🇹 italy (1)

• 🇰🇪 kenya (2)

• undefined (1)

• 🇵🇱 poland (1)

• 🇶🇦 qatar (1)

• 🇷🇴 romania (1)

• 🇸🇰 slovakia (1)

• undefined (2)

• 🇪🇸 spain (1)

• 🇸🇿 swaziland (1)

• 🇹🇳 tunisia (1)

• 🇹🇷 turkey (1)

• 🇺🇬 uganda (2)

• 🇺🇦 ukraine (1)

• undefined (2)

• 🇺🇸 united states (2)